1804485 has 8 divisors (see below), whose sum is σ = 2887200. Its totient is φ = 962384.

The previous prime is 1804477. The next prime is 1804489. The reversal of 1804485 is 5844081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1804485 - 2³ = 1804477 is a prime.

It is a super-2 number, since 2×1804485² = 6512332230450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60135 + ... + 60164.

It is an arithmetic number, because the mean of its divisors is an integer number (360900).

2^1804485 is an apocalyptic number.

1804485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1804485 is a deficient number, since it is larger than the sum of its proper divisors (1082715).

1804485 is a wasteful number, since it uses less digits than its factorization.

1804485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120307.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 1804485 is about 1343.3112074274. The cubic root of 1804485 is about 121.7449882478.

The spelling of 1804485 in words is "one million, eight hundred four thousand, four hundred eighty-five".